The sum of the first and twice the second is 17. What are the numbers?​

Alocal concert promoter purchases 2 3/4 pages of ads. when one of the concerts is cancelled, the promoter cancels 1 5/8 pages of ads. how much advertising space is the concert promoter actually using?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15